Blockchain MCP Server for AI Agents

Install

Server

Node 18+. Global install.

terminal

npm install -g @tatumio/blockchain-mcp

Client config

Add to .cursor/mcp.json or .claude/mcp.json.

.cursor/mcp.json

{
  "mcpServers": {
    "tatumio": {
      "command": "npx",
      "args": [
        "@tatumio/blockchain-mcp"
      ],
      "env": {
        "TATUM_API_KEY": "YOUR_API_KEY"
      }
    }
  }
}

Tools (13)

Blockchain Data and RPC Gateway.

Blockchain Data

10 tools

Tool	Description
get_metadata	Fetch NFT/multitoken metadata by address and IDs
get_wallet_balance_by_time	Get wallet balance at specific time
get_wallet_portfolio	Get comprehensive wallet portfolio
get_owners	Get owners of NFT/token
check_owner	Check if address owns specific token
get_transaction_history	Get transaction history for address
get_block_by_time	Get block information by timestamp
get_tokens	Get tokens for specific wallet
check_malicous_address	Check if address is malicious
get_exchange_rate	Get real-time exchange rates

RPC Gateway

3 tools

Tool	Description
gateway_get_supported_chains	Get all supported blockchain networks
gateway_get_supported_methods	Get supported RPC methods for chain
gateway_execute_rpc	Execute RPC calls on any supported chain

Runtime notes

Default to read-only calls. Writes need explicit human approval.
Covers 130+ networks across EVM, Bitcoin, Solana, Tron, Cardano, and others.
Set TATUM_API_KEY in the MCP config. See Authentication.

Example

mcp.tatumio.gateway_execute_rpc({
  chain:  "ethereum-mainnet",
  method: "eth_blockNumber",
  params: []
})
// result: "0x141f4ab"